Roggensack out-raised Fallone from Feb. 5 to March 18, collecting $295,972 compared to Fallone's $233,967. She spent $351,367 during the period, more than twice the amount Fallone spent. She had more cash on hand as well, $163,759 to $125,374.

Roggensack is generally seen as a member of the court's four-justice conservative majority. She's been playing up her 10 years' experience on the court and seven years' experience as a state appeals court judge.

Fallone, meanwhile, has been trying to link Roggensack to Justice David Prosser, another member of the conservative bloc who made headlines in 2011 when he wrapped his hands around liberal-leaning Justice Ann Walsh Bradley's neck during an argument over an opinion upholding Republican Gov. Scott Walker's collective bargaining law. The measure all but wiped out most public workers' union rights.

Fallone has accused Roggensack of contributing to the court's dysfunction. Roggensack has countered stories of infighting on the court are exaggerated and the justices get along.